4th Grade - Math - Unit 1B - Checkpoint 1

Name: ______Date: ______

(1.)  A greenhouse has 12 rows of plants. Each row has 86 plants. The diagram below shows how to find the total number of plants in the greenhouse.

80 / 6
10 / 80 x 10 = 100 / ?
2 / 80 x 2 = 160 / 6 x 2 = 12

What equation goes in the box with the question mark? What is the total number of plants in the greenhouse? (MCC4.NBT.5)

______

(2.)  Bob has seven rare baseball cards in his collection, each valued at $850. Write an expression that shows how to find the total value of all the baseball cards. (MCC4.NBT.5)

______

(3.)  Clint has 30 comedy movies on DVD and 25 mystery movies on DVD. He puts 9 DVDs on each shelf. What is the minimum number of shelves needed to hold the DVDs? Show your work. (MCC4.OA.3)

(4.)  Dylan puts aside $500 at the start of the year to pay for pet care. He has taken his dog to the veterinarian three times at a cost of $48 per visit. Which is the best way to estimate how much money he has left to spend on pest car for the rest of the year? (MCC4.OA.3)

A.  Multiply 3 x 40, which equals $120.

B.  Multiply 3 x 50, which equals $150.

C.  Multiply 3 x 50 to get $150, then subtract from $500, which equals $350.

D.  Multiply 3 x 40 to get $120, then subtract from $500, which equals $380.

(5.)  Solve the following multiplication problem using two different methods: (MCC4.NBT.5)

74 x 36= ?

(6.)  Jeni sells 193 pencils each day at the school store. Write an expression to show how many pencils she will sell after 17 days?(MCC4.OA.2)